Born on December 12: Zodiac Sign & Birthstone

Anyone born on December 12 is a Sagittarius. The December 12 birthstone is Turquoise and the December 12 birth flower is the Narcissus.

What it means to be born on December 12

A birthday on the 12th of December falls under Sagittarius. Sagittarius is a mutable fire sign ruled by Jupiter, linked in tradition to travel, philosophy and the search for meaning. The archer aiming at the horizon captures its love of freedom and far horizons. Its season closes autumn.

What weekday December 12 falls on

A common year is 365 days, which is 52 weeks plus one day, so a birthday moves forward one weekday each year and two across a leap year. Over time it visits all seven. The next time December 12 falls at a weekend is 2027, on a Sunday.

The weekday December 12 falls on over the next ten years.
Year	Weekday	Weekend?
2026	Saturday	yes
2027	Sunday	yes
2028	Tuesday	no
2029	Wednesday	no
2030	Thursday	no
2031	Friday	no
2032	Sunday	yes
2033	Monday	no
2034	Tuesday	no
2035	Wednesday	no

Your December 12 birthstone and flower

Because December 12 sits in December, your birthstone is Turquoise, a sky blue to teal gem traditionally meaning protection, friendship and good fortune. Your birth flower is the Narcissus, which stands for hope, respect and good wishes. Together they make a natural birthday pairing for a card, gift or tattoo.

Every tradition tied to December 12

Everything the calendar assigns to December 12, in one table.
Field	Value
Zodiac sign	Sagittarius (November 22 to December 21)
Element and modality	Mutable Fire
Ruling planet	Jupiter
Lucky colors	Purple and Deep blue
Modern birthstone	Turquoise, sky blue to teal
Other recognized stones	Tanzanite (violet blue), Zircon (blue to colorless), Blue Topaz (pale to sky blue)
Birth flower	Narcissus, with Holly as secondary
Day of the year	347 of 366 and 346 of 365
On a sign boundary	no

Sagittarius strengths and matches

Sagittarius is often described as optimistic, adventurous and honest. In the traditional element model, Sagittarius matches most easily with Aries, Leo and Libra. Those percentages come from a published formula you can check on the method page, not from a reading.

See the full birth profile

Want the shareable card for December 12? Open the birth profile tool, pick this date, and download a card to save or share. You can also read the full December overview, or browse every date we cover.

Frequently asked questions

What zodiac sign is December 12?

Anyone born on December 12 is a Sagittarius, a mutable fire sign ruled by Jupiter.

What is the birthstone for December 12?

The birthstone for December 12 is Turquoise, the December birthstone, which is sky blue to teal. December also recognizes Tanzanite, Zircon and Blue Topaz.

What is the birth flower for December 12?

The birth flower for December 12 is the Narcissus, the December birth flower, with the Holly as a secondary flower.

What day of the week does December 12 fall on?

In 2026 it falls on a Saturday. Because a common year is 365 days, the weekday moves on by one each year and by two across a leap year, so it cycles through all seven over time. The table on this page lists the next ten years.

Where does December 12 fall in the year?

December 12 is day 347 of a leap year and day 346 of a common year.

Born on December 12